Ph.D., Agricultural Ecology
, University of California, Davis. 1995.
Dissertation: The role of phosphorous cycling and soil physical properties in governing the bioavailability of phosphorus in a tropical Ultisol.
Master of Science, International Agricultural Development
, University of California, Davis. 1991.
Thesis: Effect of nitrogen fertilization at anthesis on nitrogen uptake, nitrogen uptake efficiency, and grain protein concentration of irrigated wheat in California.
Bachelor of Science, Agronomy
, Texas A&M University, 1986.
I am interested in developing and maintaining sustainable cropping systems. I have worked in both California and Asia. Some specific areas of focus are: (1) carbon and nutrient cycling in agro-ecosystems and its affect on nutrient availability, (2) cropping system management and diversification, (3) crop management affects on water quality, and (4) the use of participatory research for scaling up.
American Society of Agronomy (ASA)
Soil Science Society of America (SSSA)